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Cube Aerium C:68X SLX Triathlon Bike, ultra-aero carbon tri bike developed with Lucy Charles-Barclay. Features C:68X® carbon frame, integrated hydration, SRAM Force AXS and race-ready aero performance.
Cube Aerium C:68X SLX Triathlon Bike, ultra-aero carbon tri bike developed with Lucy Charles-Barclay. Features C:68X® carbon frame, integrated hydration, SRAM Force AXS and race-ready aero performance.
Cube

2026 Cube Aerium C:68X SLX Road Bike - Carbon/Black

£7,999.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

2026 Cube Aerium C:68X SLX Road Bike - Carbon/Black

Season:2026

Brand:Cube

Code:131300CBNBLK

The Cube Aerium C:68X SLX Triathlon Bike is a world-class carbon triathlon bike engineered for athletes who demand maximum aerodynamic efficiency, advanced integration, and race-winning performance. Developed in collaboration with Lucy Charles-Barclay, the Cube Bikes Aerium C:68X platform represents the fastest and most advanced aero triathlon frame Cube has ever produced, designed using extensive wind tunnel testing and real-world race validation.


World Championship-Level Aerodynamics

Built using Cube’s premium C:68X® carbon technology, the Aerium C:68X SLX delivers exceptional stiffness, ultra-low weight, and aerodynamic efficiency. The frame has been refined through advanced computational aero analysis and wind tunnel development, resulting in a cutting-edge aero triathlon bike designed to minimise drag and maximise speed during long-distance triathlon racing and time trial efforts.

Every element of the bike, from the aero fork profile to the integrated disc brake design, is engineered to slice through the air while maintaining optimal control and stability at high speeds.


Integrated Hydration and Storage for Long-Distance Racing

The Aerium C:68X SLX features fully integrated in-frame hydration and storage systems, allowing athletes to stay fuelled and hydrated without sacrificing aerodynamic performance. Discreet aero hatches conceal configurable storage compartments and dual hydration options, enabling triathletes to carry essential nutrition and fluids during Ironman and long-course triathlon events.

This intelligent design supports greater self-sufficiency on the bike leg, helping athletes maintain momentum without unnecessary stops.


Race-Proven Carbon Cockpit and Fit Adjustability

The bike features the advanced Cube C:68X® integrated aero cockpit system, designed to place the rider in the optimal aerodynamic position for maximum power and efficiency. The adjustable aero bar system offers a wide range of fit customisation, enabling athletes to dial in the perfect riding position for comfort, power output, and aerodynamic advantage over long race distances.


Elite-Level Triathlon Components

To match its cutting-edge frame, the Aerium C:68X SLX is equipped with high-performance components designed for elite racing:

  • SRAM Force AXS 2x12 Groupset with integrated power meter for precise electronic shifting and performance data
  • Newmen Streem Aero/Sprint TT 60/80 Vonoa Wheelset delivering exceptional aerodynamic efficiency and acceleration
  • Continental Grand Prix 5000 TT Tyres with aero valves for maximum speed and grip

This carefully selected race setup ensures fast acceleration, efficient power transfer, and confidence-inspiring handling, even at the highest speeds.


Built for Pure Speed

Every detail of the Aerium C:68X SLX has been meticulously engineered using Cube’s highest-grade C:68X® carbon construction, resulting in a professional-level triathlon bike that blends aerodynamics, lightweight performance, and integrated race functionality.


Whether you’re targeting Ironman podiums, long-distance triathlon PBs, or elite time trial performance, the Cube Aerium C:68X SLX is built to transform your effort into maximum speed and efficiency.

Technical Information
  • Frame
    Aerium C:68X® Monocoque Advanced Twin Mold Technology, Twin Head Tube, Full Internal Cable Routing, Flat Mount Disc, 12x142mm, AXH
  • Size
    XS, S, M, L
  • Rigid Fork
    Aerium C:68X®, Integrated Cable Routing, Flat Mount Disc, 12x100mm
  • Shift/ Brake Levers
    Sram Red eTap Clics
  • Brake System
    Sram S-900 Aero HRD (160/160)
  • Rear Derailleur
    Sram Force AXS E1, 12-Speed
  • Front Derailleur
    Sram Force AXS E1
  • Shifters
    Sram Red eTap Blips
  • Bottom Bracket
    Sram DUB Road, 86mm Pressfit
  • Crankset
    Sram Force E1 Power Meter, Dub, 50x37T
  • Cassette
    Sram Force E1 XG-1270 10-33T
  • Chain
    Sram Force E1
  • Headset
    ACROS Integrated, Top 1 1/8", Bottom 1 1/4"
  • Integrated Bar/ Stem
    CUBE Aerium C:68X® Cockpit System
  • Bar Extensions
    Profile Design 43 ASC Carbon
  • Handlebar Tape
    ACID Bartape RC 2.5
  • Wheelset
    Newmen Streem S.60/TT.80 VONOA Carbon, 15/18 Carbon Spokes, 12x100mm/12x142mm, Tubeless Ready
  • Tyres
    Conti Grand Prix 5000 TT, 28-622
  • Saddle
    Selle Italia Watt SF Magnesium
  • Seat Post
    CUBE Aerium C:68 Aero
  • Extras
    tubolito™ Inner Tubes
  • Equipment
    CUBE Concept Front Hydration / Concept Gear Unit
  • Colour
    carbon´n´black
  • Weight
    9,9 kg
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying. Please note that this bike does not come with pedals.
Sizing Information

GEOMETRY

SizeXSSML
Seat Tube535mm545mm566mm588mm
Top Tube Horizontal499mm511mm531mm557mm
Seat Angle78°78°78°78°
Head Tube Angle72°72°72°72°
Chainstays410mm410mm410mm410mm
Head Tube74mm85mm106mm129mm
Wheelbase979mm992mm1015mm1043mm
BB-Height to Hub78mm78mm78mm78mm
Protrusion Height - 80mm790mm801mm821mm824mm
Reach395mm405mm421mm442mm
Stack487mm497mm517mm539mm

ERGONOMICS

SizeXSSML
Length Seat Post350mm350mm350mm350mm
Angle Stem-18°-18°-18°-18°
Crank Length165mm165mm165mm170mm
Diameter Tyre Maximum693mm693mm693mm693mm
Width Tyre Maximum30mm30mm30mm30mm
Stem Length81mm81mm81mm81mm
Handlebar Width400mm400mm400mm400mm

All values are given in millimetres or degrees.
Professional Opinion
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